Specifications include, but are not limited to:The City of Austin (City) seeks bids in response to this solicitation to establish a contract with a qualified Vendor (Contractor) who can provide Liquid Sulfur Dioxide in one-ton cylinders. The Liquid Sulfur Dioxide technical grade which will be used at various locations for de-chlorination treatment of treated wastewater immediately prior to discharge. 3.1 Physical Requirements – The Liquid Sulfur Dioxide will be used to de-chlorinate treated effluent from the wastewater treatment plants. 3.2 The Liquid Sulfur Dioxide shall be the commercially available form of liquefied elemental Sulfur Dioxide. In a liquid or gaseous state, Sulfur Dioxide is colorless and has a suffocating and pungent odor. 3.3 The Liquid Sulfur Dioxide shall be provided in one-ton cylinders. 3.4 Chemical Requirements – The Liquid Sulfur Dioxide shall be a minimum of 99.9% pure by weight as obtained from vaporized Liquid Sulfur Dioxide. The Sulfur Dioxide shall not contain any impurities harmful or deleterious to public health when added to the wastewater in recommended amounts. 3.5 Lead washers (two per container) shall be included and delivered with each shipment.